Revision 1 expands the I-CNIS/PRI requirements to support the Billing Number Selection Feature. This feature allows a User-Provided
Not Screened (UPNS) number to be used as the Billing Number (BN) for a call. Specifically, the value UPNS Redirecting Number/Calling
Party Number (RN/CPN) preferred as BN was added to the Billing Number Selection (BNS) parameter. The revision also updated the Data
Dictionary for I-CNIS/PRI.

Revision 2 expands the I-CNIS/PRI requirements to support a feature called "Delivery of User Provided Not Screened Calling Party
Numbers (CPNs)," a new capability called "Number Privacy Override by Number Delivery Subscriber." The first feature allows the network
to accept user-provided calling number information without screening it and deliver it to the called party with the designation
"network provided." The second feature allows PRI Customer Premises Equipment (CPE) to receive delivery of CPNs and RNs on incoming
calls even though those CPNs/RNs are marked as "Presentation prohibited." The revision also provides additional clarification for the
BNS feature and includes some minor revisions to the content of the TR.